As far as the legitimacy of the process goes, I fail to see how the customer’s identity adds much.
Personally, I have an idea who a logical customer would be. But I’m not saying.
If the US government was not involved in this somewhere, behind a cut-out or whatever, that would seem to be a potentially lethal omission.
It seems to me that one would not want to be locked out of the technology that could possibly eventually make fossil fuels obsolete as an energy source.
I believe that the customer is actually known now. Apparently the customer name was inadvertently left in one of the spreadsheets that were released after the test.
It is reportedly Manutencoop Facility Management. Here is some info on them:
Manutencoop Facility Management S.p.A. provides management services for real estate, building, and equipment. Its services include management and maintenance of heat conditioning, air conditioning and refrigerating systems, antifire systems, electric and lighting systems, buildings, real estate, and technological equipments. The company also provides cleaning and pest control, hospital laundry and sterilization, office support, accessorial, catering and canteen, security, and night watch services; and real estate property services.